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amid [387]
3 years ago
11

What are the milestones of modern phyiscs?

Physics
2 answers:
nlexa [21]3 years ago
6 0

Answer:

The articles appearing under "Milestones in Physics" will give an insight into special events or situations that have been decisive for the evolution of Physics

goldenfox [79]3 years ago
4 0

Answer:

We have invented many new ways to get energy, especially renewable means of energy, and we have made many new carbon-neutral devices more widespread and cheaper.

Modern physics milestones are getting harder and harder to get because almost every element has been discovered, many gaseous and liquid substances have been experimented with and dozens of other mid 20th century discoveries.

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he primary coil of a transformer is connected to 240 V ac supply. The induced secondary voltage is 60 V. If the ac current in th
vovikov84 [41]

Answer:

Secondary current is  8A

Explanation:

Data :

Primary supply = Vp = 240 V

Secondary supply = Vs = 60V

Primary current = Ip = 2A

Secondary current = Is = ?

Formula  :     Vp × Ip = Vs × Is

So for secondary current formula becomes

          Is = (Vp/Vs)×Ip =  (240/60) × 2

     Is = 4 × 2 = 8A

6 0
2 years ago
Two identical loudspeakers 2.30 m apart are emitting sound waves into a room where the speed of sound is 340 m/s. Abby is standi
Dimas [21]

Answer:

Abby is standing (4.5^2 + 2.3^2)^1/2   from the far speaker

D2 = 5.05 m from the far speaker

The difference in distances from the speakers is

5.05 - 4.5 = .55 m     (Let y be wavelength, lambda)

n y = 4.5

(n + 1) y = 5.05 for the speakers to be in phase at smallest wavelength

y = .55 m          subtracting equations

f = v / y = 340 / .55 = 618 / sec     should be the smallest frequency

8 0
3 years ago
Kalisha is going to cut the remaining 21 1/2 buns into thirds. How many 1/3 size buns will she have?
baherus [9]
Total buns = 21 1/2 = 43/2 buns
1/3 size buns would be: 43/2 / 1/3 = 43*3 / 2 = 129/2

In short, Your Answer would be 129/2 or 64 1/2 or 64.5

Hope this helps!
6 0
3 years ago
Read 2 more answers
why is it more difficult to revolve a stone by tieing it in a longer string then by tieing it to a shorter string​
strojnjashka [21]
Because it gives it more space to be able to move farther and faster which can change the speed in which you want it to go
6 0
3 years ago
A bulldozer uses a 500 N force to push a load of dirt 16 m to the worksite. How much work
strojnjashka [21]

Explanation:

Force (F) = 500 N

Distance (d) = 16 m

work done (w) =?

We know that

w = F * d

= 500 * 16

= 8000 Joule.

The bulldozer performs 8000 Joule.

Hope it will help you :)❤

4 0
3 years ago
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